I have several sites on a dedicated IIS. One of them is a free classified site which is steadily getting more and more traffic. Now I am facing some problems maintaining the server. This is not my field so I don't know a lot on servers. I already optimized the database so it can handle heavy traffic. Now another issue come up saying "Event message: Post size exceeded allowed limits". What this means actually? Can somebody shed some light on this please. What I can do to optimize the server to handle several thousand concurrent users.
It means exactly what it says. A request arrived at the server using the POST verb that contained too much data. The setting in IIS is already pretty generous for this, but if it is a legitimate request you can up the limit. If it is not a legitimate request, in other words, it is some random server scan/exploit attempt, then you can ignore it. Just a thought, since you are a classifieds site, this message probably means that a photo upload is too big. This is typically seen when someone tries to upload a high res digital camera image directly without knowing that it should be converted to a resolution more suitable for the internet.
I appreciate your help very much. This happened when a user was trying to post. This is the first time this happened, may be I can ignore it then. Although I do encourage people using smaller images, sometimes people use images of several MB. Another question is whats the maximum users allowed on IIS? As far as I know its unlimited by default. Is it right?
unlimited, unless you set a limit in the iis manager. leave the post size limitation alone, because if the user puts the image on the server, *you* get to pay for the bandwidth it might also be wise to set up a maintenance process that goes through old expired ads and deletes the images or replaces them with a lightweight image of your choice. see if you can find a free image conversion site, and point your users to it! maybe i'll wander over later and put up an ad for the uptime monitoring services
You're welcome. Nice to know that you are on IIS. With regard to size limitation, you might even want to lower it. The best would be if you could display a custom error page when the post size limit is exceeded so that your users know what to do next. Maybe refer to a step by step guide on how to reduce the image resolution.